Get tropical with original Malibu rum muddle with lemon, mint and watermelon, and lengthened with soda.
How to mix the drink:
Add crushed ice to a chilled highball glass. Add Malibu Rum, 2 lemon wedges, mint leaves and 3 watermelon cubes to the highball glass. Stir. Top off with soda water. Garnish with watermelon.